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Accounts receivable, net (Tables) | 12 Months Ended
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Dec. 31, 2022
Accounts receivable, net [Abstract] |
Schedule of accounts receivable net |
(In thousands) |  | December 31, 2021 |  |  | December 31, 2022 |
Accounts receivable |  |  | 18,273 |  |  |  | 10,480 |
Less: Allowance for doubtful accounts |  |  | (3,350 | ) |  |  | (4,519 | )
Accounts receivable, net |  |  | 14,923 |  |  |  | 5,961 |
Schedule of movement in allowance for doubtful accounts |
(In thousands) |  | December 31, 2020 |  |  | December 31, 2021 |  |  | December 31, 2022 |
Balance at beginning of the year |  |  | 495 |  |  |  | 3,289 |  |  |  | 3,350 |
Additions |  |  | 2,785 |  |  |  | 67 |  |  |  | 1,273 |
Reversal |  |  | — |  |  |  | (22 | ) |  |  | (26 | )
Exchange difference |  |  | — |  |  |  | 16 |  |  |  | (78 | )
Balance at end of the year |  |  | 3,289 |  |  |  | 3,350 |  |  |  | 4,519 |

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- Definition Allowance for doubtful accounts receivable rollforward. + References No definition available. + Details
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- References No definition available. + Details
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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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